How to compare PowerPoint speaker notes.
Between two versions of a deck.
PowerPoint has no view that lists only the speaker notes that changed. You can step through every revision with Review → Compare in desktop PowerPoint, export the notes of both versions to Word and compare the documents, or load both .pptx files into PPT Notes Compare, which pairs slides even when they were moved and shows the changed words on each slide.
Why it’s harder than it sounds
Comparing slide 12 with slide 12 only works if nothing was inserted, deleted or moved. In a revised deck, a new slide 5 shifts everything after it, and a line-by-line comparison then reports every later slide as changed. A useful comparison first works out which old slide each new slide corresponds to, then compares their notes.
Three ways to compare
| Method | Handles moved slides | Gives a list of note changes |
|---|---|---|
| PowerPoint Review → Compare | Partly | No: you step through revisions one at a time |
| Export notes to Word, then Word Compare | No | Yes, as one long document |
| PPT Notes Compare | Yes, by content | Yes, per slide, with a checklist export |
PowerPoint: Review → Compare
Open the newer deck, choose Review → Compare and select the older file. PowerPoint merges the two and lists differences in the Revisions pane, which you accept or reject one by one. It is designed for merging edits rather than producing a list of what changed in the notes.
Word: export, then compare
In PowerPoint for Windows, File → Export → Create Handouts with notes next to or below slides sends each deck to Word. Save both documents, then use Word’s Review → Compare → Compare Documents. This works best when the slide order did not change.
PPT Notes Compare
Choose the earlier and updated .pptx and click Read speaker notes. Each updated slide is paired with its earlier slide by content; removed words are struck through and added words highlighted. Uncertain pairings are flagged for you to confirm. The files are read in your browser and not uploaded.
Deciding what to rerecord
Not every change in the notes means a new recording. A fixed typo or a whitespace change does not; a new price, date or product name does. A practical routine:
- Hide whitespace-only changes.
- List old terms that must not appear any more, such as a previous product name or deadline, and check every slide that still mentions them.
- Mark each changed slide as Skip, Record or Done, and export the recording script for the slides marked Record.
Extracting all notes from one deck
To give a narrator, translator or reviewer the notes as plain text, use PPT Notes Compare’s one-deck mode. It exports every slide’s notes in order with slide numbers and titles. In PowerPoint, the Create Handouts route above also works, but includes slide images.
Questions
Does this work with Google Slides or Keynote?
Download or export the presentation as .pptx first. Older .ppt files need saving as .pptx in PowerPoint.
Are notes in Chinese or other non-Latin scripts supported?
Yes. Notes are read as Unicode text in any language, and Chinese text is compared character by character rather than as whole lines.
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